From owner-freebsd-current@FreeBSD.ORG Thu Jul 14 19:10:45 2005 Return-Path: X-Original-To: current@FreeBSD.org Delivered-To: freebsd-current@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E9A8516A41C; Thu, 14 Jul 2005 19:10:45 +0000 (GMT) (envelope-from glebius@FreeBSD.org) Received: from cell.sick.ru (cell.sick.ru [217.72.144.68]) by mx1.FreeBSD.org (Postfix) with ESMTP id 46EF743D48; Thu, 14 Jul 2005 19:10:45 +0000 (GMT) (envelope-from glebius@FreeBSD.org) Received: from cell.sick.ru (glebius@localhost [127.0.0.1]) by cell.sick.ru (8.13.3/8.13.3) with ESMTP id j6EJAg46022373 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 14 Jul 2005 23:10:43 +0400 (MSD) (envelope-from glebius@FreeBSD.org) Received: (from glebius@localhost) by cell.sick.ru (8.13.3/8.13.1/Submit) id j6EJAg0j022372; Thu, 14 Jul 2005 23:10:42 +0400 (MSD) (envelope-from glebius@FreeBSD.org) X-Authentication-Warning: cell.sick.ru: glebius set sender to glebius@FreeBSD.org using -f Date: Thu, 14 Jul 2005 23:10:42 +0400 From: Gleb Smirnoff To: Peter Holm Message-ID: <20050714191042.GA21991@cell.sick.ru> References: <20050713083756.GA3728@cell.sick.ru> <20328.193.162.192.11.1121244715.squirrel@webmail2.pair.com> <20050714111043.GA17494@cell.sick.ru> <20050714183932.GA46344@peter.osted.lan> Mime-Version: 1.0 Content-Type: text/plain; charset=koi8-r Content-Disposition: inline In-Reply-To: <20050714183932.GA46344@peter.osted.lan> User-Agent: Mutt/1.5.6i Cc: maxim@FreeBSD.org, sam@FreeBSD.org, current@FreeBSD.org Subject: Re: http://www.holm.cc/stress/log/cons141.html X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 Jul 2005 19:10:46 -0000 On Thu, Jul 14, 2005 at 08:39:32PM +0200, Peter Holm wrote: P> > On Wed, Jul 13, 2005 at 10:51:55AM +0200, Peter Holm wrote: P> > P> > how often the panic in subject fires? I guess it is related to the problem P> > P> > discussed in this thread [1], and may be even the patch I've posted there P> > P> > will help. P> > P> > P> > P> P> > P> The panic is almost instantanious if I run the stress test while doing P> > P> an "arp -d xxx". P> > P> > The attached WIP patch helps me. The [1] script can't drop my box to panic P> > anymore, when running in 15 instances on 4-x CPU box. P> P> Yes, works for me! I've been testing for three hours without any P> problems and then ran into another unrelated livelock. Were you running it with WITNESS or without? How many CPUs does your box have? I've got a hard panic without access to ddb when running without WITNESS. I think WITNESS slowness can hide some races. I'll continue to work on this tomorrow. -- Totus tuus, Glebius. GLEBIUS-RIPN GLEB-RIPE